Question

21.) The volume occupied by a gram mole of a gas at 0°C and a pressure of 1 atmosphere
is:
A. 1x10 liters
D.7 x 10 liters
B. 3 x 10 liters
E 9 x 10 liters
C. 5 X 10' liters​

Answer 1

Answer:

The ideal gas equation relating pressure (P), volume (V), and absolute temperature (T) is given as:

PV = nRT

Where,

R is the universal gas constant =8.314Jmol

−1

K

−1

n = Number of moles = 1

T = Standard temperature = 273 K

P = Standard pressure = 1 atm =1.013×10

5

Nm

−2

∴V=nRT/P

=1×8.314×273/(1.013×10

5

)

=0.0224m

3

=22.4 litres

Hence, the molar volume of a gas at STP is 22.4 litres.

Explanation:

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